CBSE  /  Class 11  /  Biology  /  Respiration in Plants

  • 1. 
    R. Q is ratio of

  • CO produced to substarate consumed
  • CO produced to O
  • oxygen consumed to CO produced
  • oxygen consumed to water produced

  • 2. 
    Angiosperm pollen is generally released at the

  • 1 – celled stage
  • 2 – celled stage
  • 3 – celled stage
  • male gamete formation stage

  • 3. 
    The complete oxidation of pyruvate take place in

  • cell cytoplasm
  • inner mitochondrial membrane
  • mitochondrial matrix
  • nucleus

  • 4. 
    Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol

  • Pyruvic acid decarboxylase
  • Alcohol dehydrogenase
  • None of these
  • Both of these

  • 5. 
    TCA cycle was discovered by

  • Otto Meyerhof
  • Hans Kreb
  • Gustav Embden
  • All of these

  • 6. 
    Which one of the following describes the spikelet of a cereal or grass plant

  • inferior ovary
  • dehiscent fruit
  • pair of glumes
  • fused calyx

  • 7. 
    Malacophily means

  • pollination by wind
  • pollination by water
  • pollination by insects
  • pollination by snails

  • 8. 
    Herkogamy is a contrivance for

  • allogamy
  • autogamy
  • chasmogamy
  • cleistogamy

  • 9. 
    Out of 36 ATP molecules produced per glucose molecule during respiration

  • 2 are produced outside glycolysis and 34 during repiratory chain
  • 2 are produced outside mitochondria and 34 inside the mitochondria
  • all the formed inside mitochondria
  • 2 during glycolysis and 34 during kreds cycle

  • 10. 
    Complete the reaction. _________ + O→ CO+ _______ + Energy

  • CHO, 2HO
  • CHO, 6HO
  • CHO, 6HO
  • CHO, 11HO
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